Do you want to see clones in Brawl?
As I mentioned in the other thread, Brawl already has more individual newcomers than Melee and chances are there will be more. Melee had 14 newcomers (including Sheik), 6 were "clones" of which 5 were clones of veterans from the original. Brawl, alternatively, has 11 newcomers (including both Zero Suit Samus and fake-Ness aka Lucas) thus far (or 12 if you count the previously unofficially announced Ganondorf).
I wouldn't mind seeing "clone" characters, though I say so cautiously. Artificially inflating the roster is a concern though that may not be a problem. I'm assuming that every non-clone character (plus a brand new non-clone Ganondorf) will be in Brawl. That sets the roster at over 30 so far which isn't bad considering none are clones. Additionally, I expect a few more individual, unique newcomers. Since there are more newcomers, I don't feel as if the roster is deceptively larger than it actually is.
I think clones can work if they actually feel significantly different. Adjusting weight/speed/size/strength is one thing though also changing a move or two could work at making similar movesets feel a bit more unique. If the "clones" were more along the lines of Luigi to Mario as opposed to Dr. Mario to Mario, I think it'd work better. I wasn't very satisfied with how "clones" worked in Melee.
On a side note, I think Tails and Knuckles could work as "clones" of Sonic. Adjust attributes and moves such as the up special move (Tails-->fly, Knuckles-->glide) for example, and there you have 2 additional characters. I know some people aren't fans of Sonic or his pals, but I still wouldn't say no to more characters, especially if balanced correctly. With Brawl having a a good number of unique newcomers, I wouldn't mind "clone" characters at all.